/**
* 设置键值
* @param string $key 键名
* @param mixed $value 键值
* @param int $time 过期时间,默认为-1,不设置过期时间;为0则设置为永不过期
* @return boolean 是否成功
*/
public function set($key, $value, $time = -1)
{
try {
if ($time > 0) {
return $this->handler->setex($key, $time, self::setValue($value));
}
return $this->handler->set($key, self::setValue($value));
} catch (RedisException $ex) {
self::exception($ex);
//连接状态置为false
$this->isConnected = false;
}
return false;
}
/**
* 设置键值，将自动延迟过期;<br>
* 此方法用于缓存对过期要求宽松的数据;<br>
* 使用此方法设置缓存配合getDE方法可以有效防止惊群现象发生
* @param string $key 键名
* @param mixed $value 键值
* @param int $time 过期时间，<=0则设置为永不过期
* @param int $delayTime 延迟过期时间，如果未设置，则使用配置中的设置
* @return boolean 是否成功
*/
public function setDE($key, $value, $time, $delayTime = null)
{
try {
if ($time > 0) {
$delayTime = $this->getDelayTime($delayTime);
$ret = $this->handler->multi()->setex($key, $time + $delayTime, self::setValue($value))->setex(self::timeKey($key), $time + $delayTime, self::setValue(['expire_time' => time() + $time + $delayTime, 'delay_time' => $delayTime]))->exec();
return $ret !== false ? true : false;
}
$timeValue = self::getValue($this->handler->get(self::timeKey($key)));
//已过期或 time<=0 时
if ($timeValue !== false && (self::isExpiredDE($timeValue) || $time <= 0)) {
$this->handler->del($key, self::timeKey($key));
}
return $this->handler->set($key, self::setValue($value));
} catch (RedisException $ex) {
self::exception($ex);
//连接状态置为false
$this->isConnected = false;
}
return false;
}
